This circuit was found in a Texas Instruments documentation from the 1980s. The circuit monitors engine temperature by warning of engine warm-up and warning when the fan is on.
The circuit used is not common today, as the configuration is from 1994. The circuit is from the...
This circuit was found in old documentation from Analog Devices. The integrated circuit is from...
Suggested by General Electric in 1980s documentation, this circuit makes use of PUTs that are not...